Lubricating pump



Feb.. 3, 1948. F, 1 RODE UAL 2,435,468

LUBRICATING PUMP.

Filed Sept. 21, 1943 5 Sheets-Sheet 1 rammen-l jvf-a MEREDITH HATCH.

f9.1 L @WMM Feb. 3, 1948. l F.. J. RODE ETAL l 2,435,468

LUBRICATING PUMP Filed sept. 21, 1943 s sheets-sheet z IN VEN TORS. FREDRICH J. RODE Sr Feb. 3, 1948. f F. J. RODl ET AL. 2,435,468

LUBRI CTING PUMP INVENTORS. T FREDRICH J- ROD f Patented Feb. 3, l1948 UNITED STATES PATENT ortica LUBRICATIN G PUMP Fredrich J. Rode and Meredith R. Hatch, Toledo,

lOhio, assignors to E. W. flyn, N. Y., a corporation Application September 21, 1943, Serial No. 503,226

` s claims. (ci. lai-2s) I This invention relates, as indicated, to lubrieating pumps,

but has reference more particularly to a manually-operated pump which has been designed primarily to be used in a system.

f access to this reservoir not only as a distributing valve which may be rotated to effect optional distribution in either of two directions, but also as a cylinder for the lubricant feeding piston or plunger, an element which serves not only as a return valve for excess lubricant but as an indicator to denote the.,

return of such excess lubricant to the pump, and a handle which serves not only to feed the lubricant but to rotate the aforesaid cylinder to its optional positions as well as a means of returning the aforesaid indicator to its initial position.

Another object of the invention is to provide a pump of the character described which is of ,sturdy and compact construction, and well adapted for use in a lubricating system such referred to above.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings, forming .a part of this specification, and in which like numerals `are employed to designate like parts throughout the same.

Fig. 1 is a side elevational view of a lubricating pump embodying the invention;

Fig. 2 is a top :plan viewv of the pump, with the cover removed;

Fig. 3 is a. vfront elevational view of the pump; Fig. 4 is a fragmentary cross-'sectional view, tal-ren on the line 4-4 of Fig. 3, and

Fig. 5 is a fragmentary cross-sectional view,A

taken on the line 5 5 of Fig. 4.

Referring more particularly to the drawings, the pump will be seen to comprise a. pump body I, having a bracket portion 2 and laterally extending lugs or ears 3 whereby the pump may be secured to a suitable support or supporting ustructure (not shown).

Mounted onthe pump body I is a cylindrical chamber or reservoir 4 which is adapted to contain a supply of grease or other lubricating medium,

' consists of an upper Bliss Company, Brookof Delaware forI- the purpose of filling the same being had through the top thereof. which is normally closed cap` 5, which is Vpivotally secured to the reservoir l, as at 6, f

The pumpkbody I has a cylindrical opening 1 therein, in which is mounted a valve 8, preferably formed of hard brass, land having a plurality of radial passageways 9, I0, II, I2 and Il therein. The passageways '9, I0, II and I2 extend from the periphery of the valve 8 to an axially extending passageway or chamber I4, and the 4passageway I3 extends inwardly from the periphery of the valve to a. p oint short `of the passageway I4, communicating with a chamber 0r recess I5 in a reduced rear portion I6 of the 'valve through an angularly extending passageway Il. n

The chamber I5 4has an opening I8 in the wall thereof which extend-s through an angle of approximately 60 degrees, and this opening is at all times in communication with a radial passag'eway IS in the pump body I, which passageway is closed at its outer end by means of a plug 20. `The passageway I'S is in communication with one end of a longitudinally extending passageway 2| in the pump body, the passageway 2| intersecting `a vertically extending passageway 22 in the -pump vbody which interconnects v the interior of the reservoir 4 with certain of the radial passageways in the valve 8.

The valve l is maintained against axial displacement from thepump body by means of a front cover and a rear cover. The front cover portion 23 and a lower portion 23a, the latter provided with forwardly extending projections Zlwhich serve as stops, as Will be presently explained. The cover parts 23 and 23a are secured to the pump body, as by means of screws 25, and the rear cover 26 is secured to the pump body as by means of screws 2.7. A packing leather 28 isinterposed between the vfront cover and the pump body, and a packing leather 29-is interposed between the valve 8 and the pumpbody.

The radial passageways 9, I0, II and I2 are provided with ball checks 30. Y

, Mounted for reciprocal movement in the axially extending cham-ber Ilof the valve 8 is a plunger 3l, the intermediate portion of which extend-s through a gland nut 32, which through pressure on packing 33, serves to prevent leakage of the lubricating medium through thev `front of the valve 8. H

Thevalve 8 is further provided with a pairot by means of a closure or.

by uld pressure in one end of said passageway; means for connecting said chamber with the one end of a closed lubricating fluid system; and means for connecting said one end of said passage with the opposite end of said lubricating system, said last named valve having an indicator head extending exteriorly of the pump body whereby the position of said head indicates the entrance of fluid into said passageway.

3. In a pump of the character described, a Dump body; a valve mounted in said body and movable about its axis to a plurality of selected positions, said body having a passageway therein parallel with the aXis of said valve; a second valve mounted for reciprocal movement in said passageway and being movable from an initial position by fluid pressure in one end of said passageway; means for connecting said valve with one end of a closed lubricating uid system; means for connecting said one end of said passageway with the opposite end of said closed lubricating system, said last named valve having an indicater head disposed exteriorly of the pump body whereby the position of said head indicates entrance of lubricant into said passageway; and manually operated means for returning said last named valve to its initial position.

4. In a pump of the character described, a pump body; a valve mounted in said body and movable to a plurality of selected positions to vary the distribution of a lubricant from said pump; a plunger mounted for reciprocal movement in said valve, said body having a passageway therein; and indicator element in said passageway movable from an initial position by fluid pressure entering said passageway; means for connecting said valve body with one end of a closed lubricating fluid system; means for connecting said passageway with the opposite end of said lubricating system; and a handle for reciprocating said plunger, said handle being engageable with said indicator element for moving said element to its initial position.

5. In a pump of the character described, a pump body; a valve mounted in said body and movable to a plurality of selected positions to vary the distribution of a lubricant from said `pump; a, plunger mounted for reciprocal movement in said valve, said body having a passageway therein; an indicator element in said passageway movable from an initial position by fluid pressure in said passageway; means for connecting said valve with one end of a closed lubricating uuid system; means for connecting said passageway with the opposite end of said lubricating system; and a handle for reciprocating said plunger and for rotating said valve to said selected positions, said handleV being operable, when the valve is in a position intermediate said selected positions to return said indicator element to its initial position.

6. In a pump of the character described, the pump body; a lubricant reservoir mounted thereon; a valve mounted in said body and rotatable to a plurality of selectedpositions, said valve having an axial chamber therein and a passage leading from said chamber radially to the periphery of the valve, said body having a passageway leading from said reservoir to the periphery of said valve and being alignablewith said radially extending passage, said body having a second passageway therein extending parallel with said chamber and intersecting the rst mentioned passageway in said body; a second valve mounted for reciprocal movement in said second passageway and movable by fluid pressure in one end of said passageway; means for connecting the rst mentioned valve with one end of a closed lubricating system and means for connecting said one end of said second passageway with the opposite end of said lubricating system, said last named valve having an indicator head disposed exteriorly of the pump body whereby the position of said head indicates the entrance of lubricant into said passageway.,

FREDRICH J. RODE. MEREDITH R. HATCH.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date Re. 21,160 Hillis July 25, 1939 777,969 Manzel Dec. 20, 1904 1,590,500 Dahle June 29, 1926 1,718,985 Scoville July 2, 1929 1,960,703 Hess May 29, 1934 2,157,970 Rowland et al May 9, 1939 2,168,937 Hillis Aug, 8, 1939 FOREIGN PATENTS Number VCountry Date 106,247 Germany Nov. 8, 1899 

